IN PICTURES: Sydney's famed Wedding Cake Rock could collapse at any moment

A popular scenic spot south of Sydney has been cordoned off from the public.The Wedding Cake Rock, in the Royal National Park in Bundeena, could collapse without warning, experts say. Click through for images of the picturesque spot.

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A popular scenic spot south of Sydney has been cordoned off from the public.

The Wedding Cake Rock, in the Royal National Park in Bundeena, could collapse without warning, experts say.

Click through for images of the picturesque spot.

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The rock is famed for its flat surface and white, fissured texture. (AAP)

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The spot has become a social media hotspot. (Facebook/Alan La)

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NSW National Parks and Wildlife said the "extraordinary attention" from the public triggered a geotechnical survey. (Facebook/Julia Gartha Hammer)

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Social media photos like this prompted the assessment. (Instagram/Sonja_X)

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Visitors are still welcome to the area, but shots like this won't be possible. (Instagram/Jake Pattison)

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The site has attracted local and international visitors. (Instagram/Linda Edorrson)

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An Instagram hashtag dedicated to the rock has more than 4000 posts. (Instagram/Jeremy Tang)

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If you haven't yet been, you better go soon - it could be gone within a decade. (Instagram/Linghansnow)

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Safety fences will be erected until permanent viewing platforms are built. (AAP)